I don’t have real value to add on the ScienceBlogs controversy. The only thing I want to mention is that there are some nascent superstar weblogs on that network which aren’t big names, yet, but perhaps will be. You can miss them coming in via the front page because they don’t crank out 10-15 posts per day, but they make them count when they do post. Two new weblogs which have caught my attention are Thoughtful Animals and Observations of a Nerd. There are others too if you poke around (your disciplinary focus may differ).
At this point I think for some people ScienceBlogs is not a the optimal venue. Obviously I was one of those people, as I left in late March. But for other people the reach of a prominent network still has utility. No need to throw the baby out with the bathwater. So by all means, let’s keep track of the SB Diaspora, but there are also diamonds in the rough who aren’t budging.